Low voltage plastic insulated power cable insulation damage repair methods

Power cable for cable transmission or distribution of electric power systems . With the development of the petrochemical industry , plastic insulated power cables due to its manufacturing process is simple audio cable, to facilitate the construction , maintenance, has become an important variety of low-voltage power cables . However, the insulation will inevitably bumps, scratches , crushing failure point defects in the plastic extrusion process , in order to ensure a constant length production, reduce waste, while Displayport CABLE  ensuring that the electrical characteristics of the finished cable meets the requirements of the standard , we need to find a suitable insulation damage repair methods . A thermal welding method for thermal welding method is to use a stereo cable suitable power electric iron, iron heat integration. 1.1 Low Voltage PVC insulated cables
 PVC material is a thermoplastic material , such as to repair damaged cable insulation should be used in the form of heat welding . In order to ensure and improve the electrical and mechanical performance audio cable machine patch , patch overlapping single winding insulation tape , winding smooth. 1.2 low voltage XLPE insulated cables
 A thermosetting material XLPE materials belong audio cable, insulating molecular silane crosslinked network after curing . In the insulated core insulation damage water crosslinking process , using heat welding repair, and then wrapped with cellophane tape repair to prevent fixes ; in boiling water crosslinking process core insulation to insulation damage should be repaired using heat welding method and pressure levels are high voltage 35kV adhesive tape duplication and ensure high tape wrapping should be smooth .
Method 2 stereo line repair repair complex method of heat shrinkable tube heat shrinkable tube shrink sleeve is hot  Mini HDMI cable right size defects , shrink packaging tight defects. Whether it is made ​​of an insulating material thermoplastic or thermosetting crosslinked polyethylene and polyvinyl chloride audio cable materials , insulated core nominal cross-section of less than 10mm2, should be used to shrink tube heat shrinkable tube repair , after the repair is completed, wrapped with insulating tape . Three kinds of hot fix iron welding repair method for repairing audio line tools, you can achieve a complete cable insulation performance levels , but the repair process is more complicated , requiring the operator to have a higher level of technology.
A small section of the wire , if the thermal complex audio cable repair welding methods , it is difficult to ensure the quality of maintenance , repair methods should be used to heat shrinkable tube.
In order to ensure electrical performance after the repair , insulated core standard requirements , must be insulated voltage spark 3.5kv/5min voltage testing, product layer. Only a small range of audio cable insulation damage repair methods , defect severely scratched , injured , hurt , in order to ensure the quality of the product, not to repair .